Gifford Pinchot and the First Foresters: The Untold Story of the Brave Men and Women Who Launched the American Conservation Movement. By Bibi Gaston

2018 ◽  
Vol 23 (2) ◽  
pp. 413-415
Author(s):  
Julie Dunlap
2000 ◽  
Vol 12 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Otis L. Graham

The third Conservation movement was summoned to life between Rachel Carson's The Silent Spring (1962) and the Santa Barbara Oil Spill at the end of the movement-spawning Sixties, and would be called by a more nature-evoking term—environmentalism. Looking back from there, those of us with some historical memory were struck by how far we had come from the first Conservation crusade led by John Muir, Theodore Roosevelt, and Gifford Pinchot, or the second led by FDR in the 1930s. In those early days they thought the problem was loss of forests, soil erosion, water and air pollution, and that the solutions were National Parks and National Forests watched over by civil servants in their gray or tan-brown uniforms, along with a Soil Conservation Service for farmers.


2002 ◽  
Vol 71 (3) ◽  
pp. 357-387 ◽  
Author(s):  
Joseph E. Taylor

Historians have long debated the fate of the conservation movement during the 1920s. While all seem to agree that a sharp divide existed between conservationists and anti-conservationists, they have differed over whether conservation entered a Dark Age during these years, whether it was sustained by private organizations and radical amateurs, or signaled an era of continuity in relations between industry and the state. The battle over the 1924 White Act, a piece of federal legislation designed to protect dwindling Alaska salmon stocks, suggests that all these conclusions deserve reevaluation. While conservation hardly disappeared during the Republican ascendancy, it did undergo important changes as federal officials emphasized production-oriented concerns for efficiency over socially oriented concerns about equity. The heated debate that erupted over the White Act bared significant differences in how Americans defined the meaning of conservation at the time. The resulting policies, as many historians have noted, often benefited large producers over smallholders while accomplishing little in solving the underlying problems of waste and depletion.


Author(s):  
R.C. Caughey ◽  
U.P. Kalyan-Raman

Prolactin producing pituitary adenomas are ultrastructurally characterized by secretory granules varying in size (150-300nm), abundance of endoplasmic reticulum, and misplaced exocytosis. They are also subclassified as sparsely or densely granulated according to the amount of granules present. The hormone levels in men and women vary, being higher in men; so also the symptoms vary between both sexes. In order to understand this variation, we studied 21 prolactin producing pituitary adenomas by transmission electron microscope. This was out of a total of 80 pituitary adenomas. There were 6 men and 15 women in this group of 21 prolactinomas.All of the pituitary adenomas were fixed in 2.5% glutaraldehyde, rinsed in Millonig's phosphate buffer, and post fixed with 1% osmium tetroxide. They were then en bloc stained with 0.5% uranyl acetate, rinsed with Walpole's non-phosphate buffer, dehydrated with graded series of ethanols and embedded with Epon 812 epoxy resin.


1964 ◽  
Vol 7 (4) ◽  
pp. 389-393 ◽  
Author(s):  
David C. Shepherd ◽  
Robert Goldstein ◽  
Benjamin Rosenblüt

Two separate studies investigated race and sex differences in normal auditory sensitivity. Study I measured thresholds at 500, 1000, and 2000 cps of 23 white men, 26 white women, 21 negro men, and 24 negro women using the method of limits. In Study II thresholds of 10 white men, 10 white women, 10 negro men, and 10 negro women were measured at 1000 cps using four different stimulus conditions and the method of adjustment by means of Bekesy audiometry. Results indicated that the white men and women in Study I heard significantly better than their negro counterparts at 1000 and 2000 cps. There were no significant differences between the average thresholds measured at 1000 cps of the white and negro men in Study II. White women produced better auditory thresholds with three stimulus conditions and significantly more sensitive thresholds with the slow pulsed stimulus than did the negro women in Study II.


2004 ◽  
Vol 171 (4S) ◽  
pp. 233-233
Author(s):  
Justine M. Schober ◽  
Heino F.L. Meyer-Bahlburg ◽  
Philip G. Ransley
Keyword(s):  

2010 ◽  
Vol 43 (5) ◽  
pp. 41
Author(s):  
MITCHEL L. ZOLER
Keyword(s):  

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